/*
    This file is part of the substandard lisp implementation of Standard Lisp
    Copyright (C) 2011 Nicky Nickell

    substandard lisp is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

function std_max(a, env) {
  var args = homogenize_args(a[0]);

  if (args[0].type == TYPE_INTEGER) {
    var biggest = args[0];
    for (var i = 1; i < args.length; i++) {
      if (args[i].value.compare(biggest.value) == 1) {
        biggest = args[i];
      }
    }
    return biggest;
  } else {
    var biggest = args[0];
    for (var i = 1; i < args.length; i++) {
      if (args[i].value > biggest.value) {
        biggest = args[i];
      }
    }
    return biggest;
  }
}

/*---
name: max
arity: 0
rest: true
ftype: FTYPE_EXPR

argument-types:
  - CLASS_NUMBER

doc: |
  explaining what max is / how it is used!

tests: |
  (max 1 2 3) -> 3
  (max -1 2 3) -> 3
  (max 1.1 2.1 3.1) -> 3.1
  (max -1 1) -> 1
  (max 1 1) -> 1
  (max 1.1 1.1) -> 1.1
...*/
